Harshraj Patil
Java Full Stack Developer with hands-on experience building end-to-end web applications using Spring Boot, React, and MySQL/Oracle. Comfortable owning a feature from REST API and database design through to a working UI—including authentication (JWT/OAuth), role-based access control, and third-party integrations.
Strong grounding in Data Structures & Algorithms and MVC architecture, with a track record of debugging real production-style issues (database schema conflicts, integration test failures, security vulnerabilities) across multiple full-stack projects.
Experience
Java Development Intern
Oasis Infobyte
Remote
Built a full-stack Library Management System handling book cataloging, user management, and issue/return workflows using Java, JDBC/Hibernate, and MySQL. Implemented CRUD operations and database integration with a focus on data consistency, following modular MVC architecture. Recognized as a Star Performer for technical execution and collaboration; received a formal letter of recommendation.
Education
Dr. D.Y. Patil College of Engineering and Innovation
B.E. in Computer Engineering
CGPA: 8.0
Skills
JavaJavaScriptPythonSpringSpringBootHibernateJPAREST APIsJWTOAuthNode.jsExpress.jsReact.jsNext.jsHTML5CSS3Tailwind CSSSQLMyOracle DBMongoDBJDBCMVCMicroservicesDockerGitGitHubPostmanMavenJUnit
PROJECTS
Service Hub — Local Services Booking Marketplace
Java 17, Spring Boot 3, React, MySQL, JWT
Building a full-stack marketplace platform with role-based access for Customers, Providers, and Admins, covering booking workflows, reviews, wallet, messaging, and dispute handling. Conducted a security audit across 24+ Spring Boot controllers, identifying and remediating critical issues including missing ownership checks, mass assignment vulnerabilities, and broken auth guards.
Debugged integration test failures involving Testcontainers, Docker, and transactional rollback handling to stabilize the test suite.
Digital Library Management System
Java, Spring Boot, Oracle DB, JWT, React
Developed a full-stack library management platform with role-based access control, JWT authentication, and book issue/return workflows across 9 screens. Diagnosed and resolved Hibernate DDL and Oracle schema conflicts, plus a React/Spring Dev Tools integration error, to stabilize the development environment.
Bank Application Backend
Java, Spring Boot, REST API, MySQL
Built RESTful APIs for core banking operations—account management, deposits, withdrawals, transfers—with transaction history and PDF statement export. Designed a secure, modular backend architecture for reliable transaction processing.
CERTIFICATIONS
Software Engineering Job Simulation — JPMorgan Chase & Co. (Forage)
Project Setup, Kafka Integration, H2 Integration, REST API Controller
Elements of AI (2 ECTS) — University of Helsinki/Minna Learn
Green Skills & Artificial Intelligence — AICTE/Edunet Foundation/Shell India (Skills4Future)
Web Development Fundamentals — IBM Skills Build
Build Your Own Chatbot — IBM Skills Build
ACHIEVEMENTS & EXTRACURRICULARS
Star Performer
Oasis Infobyte
Recognized as Star Performer during the Oasis Infobyte internship for technical execution and collaboration.
GitHub Portfolio
Maintains 30+ personal repositories on GitHub, actively using Git for version control across academic and independent projects.
AI-powered Chatbot
Built and integrated an AI-powered chatbot (SpringBoot + local LLM via Ollama) with streaming responses and voice input.